Type-writing machine



(No Mod m Q {2 sheetssheet 1.

,0; WHEELER, J1. TYPE WRITING MAUHINE N0:.55O,549 I Patented Nov.26,1895.

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'OIWHEELER, Jru- I vTYPE WRITING MACHINE. v No. 550,549. Pa ten,tedNOv-.-Z6, 1895.

ANDREW B.GRAHAMJHUN'UI'NQWASHINGTDNJ c UNITED STATES ,cYEENUs WHEELER,JR.,

PATENT OFFICE.

OF AUBURN, NEW YORK.

TYPE-WRITING MACHINE.

SPECIFICATION forming part of Letters Patent No. 550,549, dated November26, 1895.

Application filed, July 20, 1894- Serial N0, 518,091. (No model.)

To all whom it may concern.-

Be it known that I, OYRENUs WHEELER, Jr., a citizen of the UnitedStates, residing in the city of Auburn, in the county of Cayuga andState of New York, have invented certain new and useful Improvements inType-Writers, of which the following is a specification, reference beinghad to the accompanying drawings.

The invention relates to that class of typewriters in which animpression or paper-carrying cylinder or roller mounted in a travelingframe or carriage is employed, such frame being automatically movedforward with a step-by-step motion as the keys are operated and movedbackward by the operator whenever a new line is to be commenced.

The invention consists of a hinged track or inclined way supported onthe fixed frame of the machine in front of and parallel to thepaper-carrying roller and in the path of a lever carrying a pawl pivotedon the axis of the paper-carrying roller, which is operated by reason ofengagement with the said track as the roller-carriage is being movedback to cause the roller to be turned. This improvement is shown asapplied to the Orandall typewriter, and the description of that machineis only so far given as is necessary to show the connections of thedevice with it and its operation on that machine.

The improvement further consists of a knob pivoted to the left-hand endof the papercarrying-roller shaft, so that the paper-carrying roller canturn independent of said knob.

In the drawings, Figure 1 is a plan or top View of the machine. Fig. 2is a front view. Fig. 3 is a view of the right-hand side of the machinewith the lower part of the type-cylinder and the back ends of theoperating-levers broken away. Fig. 4 is a detached view of the back sideof the hinged track with its supports attached to a section of theframework. Fig. 5 is a view of the ratchet-wheel on the right-hand endof the paper-carryingroller shaft and the pawl and levers for moving theratchet-wheel and the paper-carrying roller. Fig. 6 is a front view ofFig. 4:, and Fig. 7 is a view of the left-hand end of the paper-carryingroller and its knob for turning it and a small knob pivoted to the shaftoutside of its face.

The same letters and numerals indicate like parts in all the views.

The base-piece or lower part of the supporting-frame is indicated by Aand the upper part by B, which is united to the lower portion by theposts 0, D, and E on top of the frame B. The frame F is mounted on waysso as to be movable thereon back and forth behind the type-cylinder, theforward movementthat is, from the right hand to the left-beingaccomplished by a spring the distance required on the line for eachletter in the process of printing the words.

The return of the paper-carrying roller to its starting-point orbackward movementis done by the operator putting his thumb or fingeragainst the knob and pushing it back to the point for commencinganewline. On the frame F the journals of the paper-carrying roller G aremounted. On the end of the journal, at the right-hand end of thepapercarrying roller G, a pawl-carrier H is mounted, so as to turnfreely on it and outside of it. To the same journal a ratchet-wheel I isfirmly fastened; A pawl J is pivoted to the carrier H, so that itsfreeend will drop into and lock with the ratchet-wheel. The carrier isalso provided with a thumb-lever K, which proj ects forward or towardthe keyboard of the machine, and by means of which the operator can,when it is necessary, turn the roller G the required distance for eachline. On the lefthand end of the journal of the rollerGa knob N isfastened, by which the operator can turn the roller forward or back whennecessary or use to push the roller back at the end of each completedline to begin another.

The paper-carrying roller G is furnished on its lower side with a smallroller, which is held against it by springs which serve to hold thepaper firmly against the roller G. This small roller is indicated by S,Fig. 2. The type-cylinder is indicated by L, and the keys by which it isoperated by M.

The description so far applies to the Grandall type-writer. In usingthat machine as constructed it is necessary for the operator at the endof each line printed to push the paper-carrying roller G and its frame Fback from the left to the right hand by placing his thumb or fingeragainst the knob N. It is also necessary for him, by means of the thumblever K, to turn the paper'carrying roller G the distance required for anew line. This requires two separate manipulations by the operator. Ifthe operator fails to turn the paper-carrying roller G either before orafter pushing the roller back, he will print again on the same line. Toremedy this difficulty the automatic devices hereinafter described weredevised and applied, so that but one movement by the operator isrequired. The devices consist, first, of the supporting-piece O, whichis bent at right angles, and is fastcned by screws to the right-handside of the upper portion of the frame 13, so that one branch of thepiece will project outward from the frame, parallel to and a shortdistance in front of the paper-carrying roller G. In the construction ofa new machine a projection could be cast on the frame to serve the samepurpose. To the projecting part of this piece 0 a piece Q is connectedby two screws a b. The piece Q has a curved slot at the point where thescrew b passes through it, which admits of the outer end of the piece Q,being set and held atdifferent heights to vary the spaces between thelines, as shown by the dotted lines in Fig. 6.

To the outer end of the piece Q, on it's back side, one end of the pieceR is pivoted by the screw 0, its other end being free to rise and fallwithin certain limits determined by the piece 0, which limits itsdownward move-V ment, and the lug or stop (Z 011 the piece Q limitingits upward rise. (See Fig. 4.) The piece R is formed with a ledge orshelf 2, that projects back from it at right angles, as shown in Fig. 4,and serves as a track for the friction-roller f on the lever g to travelon. This lever g is fastened to the pawl-carrier H, its end projectingforward from it at right angles to the journal of the paper-carryingroller. The friction-roller f is journaled on its projecting end, (seeFigs. 1 and 2,) showing its relation to the track-piece R and its ledgeor track c. Fig. 5 shows the different positions of the lever g andfriction-roller f when in use.

To move the paper-carryin g roller from the left hand to the right, theoperator places his thumb or finger against the roller-turning knob N.This worked satisfactory so long as there was no rotation of thepaper-carrying roller produced by such movement. lVith the improvementapplied to the machine the rotation given to the roller G, as it wasmoved back, imparted to the muscles of the finger or thumb an unpleasantand objectionable twist which interfered with the free movement of theroller G from left to right. This difficulty was removed by pivoting tothe center of the outer face of the roller-turning knob N a small knob71 By pivoting this knob, as described, the roller G when moved back bythe operator turns freely independent of knob h,against which theoperators finger or thumb is applied. It will be observed that these twoknobs N and h are arranged outside of the carriage in which theimpression-roller is supported. .By these improvements the operator canwith great rapidity perform the work of changing the machine from theend of one line to the commencement of another with no possibility ofprinting again on the same line, however quickly the operator moves thepaper-feeding roller back. If wider space is required between certainlines, the operator can use the knob N to turn the paper-feeding roller,and the thumb-lever K can also be used for the same purpose whenever thefrictionroller 011 the lever g is not over or under the ledge or tracke.

In Fig. 4 I have indicated by dotted arrows the course taken by theroller f 011 the end of the lever g as it passes the lifting ledge e.The full lines show the positions of the parts as the roller f(represented at 1) comes into engagement with the track or ledge e 011the backward movement of the carriage. In passing from the position 1.to that indicated by the dotted circle 2 the roller f rides upon theincline formed by the upper surface of the ledge a following the pathindicated by the arrow connecting circles l and 2. This causes theimpressionroller to be turned, and as soon as the roller f escapesbeyond the end of the ledge 6 it is immediately moved into its normalposition by a suitable spring, this position being indicated by thecircle 3. In assuming this position the roller falls below the elevatedend of the ledge, and when the carriage makes its forward movements ittakes the path of the arrow connecting the circles 3, 4t, and 1. hen itarrives at the position 4, it comes into engagement with the undersurface of the ledge e, which latter is raised into the dottedlineposition as the roller moves to the position 1. Furthermovementcausesthe disengagement of the roller and the ledge, when the latter fallsinto its normal position and is ready to again operate the paper-rollerwhen the carriage is moved back.

It will be observed that the position of the track or ledge whichoperates the pawl-lever is between the extremes of movement of the endof the lever as it moves backward and forward with the carriage, itsposition being somewhat nearer the extreme forward or lefthand limit ofsuch travel. The advantage of such arrangement is that it insures theoperation of the pawl-lever and the turning of the roller, even thoughthe carriage be not moved back to the extreme backward or right-hand endof its travel, so that whether a wide or a narrow marginbe given to thepage being written the roller will nevertheless be automatically turned.

\Vhenever it is desired to move back the carriage without turning thepaper-roller, as when a correction is to be made, the operator raisesthe free end of the pivoted ledge or track 6, so that the end of thepawl-leverwill not engage therewith as it passes. To facilitate suchmovement of the pivoted ledge or track, I preferably construct the partsQ and R of the attachment as shown in the drawingsthat is to say, sothat there is an open space R between them. This space allows theoperator to easily insert his finger below thepart R and raise it, forit must be remembered that the ledge or track e projects away from theoperator, and it is not easy for him to reach this when operating themachine in order to lift it out of the way of the roller f.

Having described the invention and its operation, what I claim as new,and desire to secure by Letters Patent, is

1. In a type-writer the combination with a paper roller, and means forautomatically turning it to feed the paper, a knob h, mounted at thevforward end of the said roller and outside of the carriage in which thepaper roller is mounted, but free from being carried around or turningtherewith, substantially as set forth.

2. In a type-writer, the combination of the following elements viz. afixed frame, a movable frame supported thereon, a paper feeding roller,supported in bearings on the movable frame, a ratchet wheel attached tothe journal of said roller, a pawl carrier and lever for operating saidratchet, pivotedto said journal and projecting forward at right anglesthereto, and carrying on its end a friction roller; an inclined hingedtrack, supported on the fixed frame, in front of, and parallel to thepaper feeding roller, and in the path of the pawl carrier lever, so thatthe friction roller on its lever, will pass over said track when theoperator moves the paper feeding roller, from its left hand, to itsright hand position, the knob, pivoted to the left hand end of the paperfeeding roller, the

roller turning knob N, firmly attached to said roller shaft, the saidknobs being arranged outside of the movable frame in which the paperfeeding roller is mounted and the thumb lever K, attached to the pawlcarrier H, so that they can either be used for turning the roller G,independent of the other, and independent of the track piece R, substantially as described.

3. In a type writer, the combination with the traveling carriagecarrying an impression, paper-feeding roller, of a lever for turningsuch roller, a pivoted inclined track or ledge with which the said leveris adapted to engage, to cause rotation of the paper-feeding roller, asupporting piece Q to which the said pivoted track or ledge is secured,the said supporting piece being pivoted at a and provided with a slot,through which passes a screw 12, whereby the said piece may be adjustedin order to change the space between the lines, substantially as setforth.

4. In a typewriter, the combination with the traveling carriage carryingan impression,

paper-feeding roller, of a lever for turning such roller, a pivotedinclined track or ledge with which the said lever is adapted to engage,the said ledge being carried by a piece, R, and a supporting piece, Q,to which said piece, R, is pivoted, the said pieces Q and B beingconstructed substantially as described whereby there is an open space,R, between them, substantially as and for the purpose set forth.

OYRENUS WHEELER, JR. ,Witnesses CHAS. G. ADAMS, S. J. WESTFALL

